Hydrocarbon-burner.



W. SCRIMGEOUR. I HYDROGARBON BURNER.

APPLIOATIOE FILED DBO. 26, 1907.

928,886. Patented July 20,1909

2 SHEETS-SHEET 1. 8%. z I

W. SORIMGEOUR. HYDROCARBON BURNER. APPLICATION P1 D DEO.26,1907.

2 SHEETS-SHEET 2f svwenfoz Patented July 20, 1909.

UNITED sTAT s rnu nnr carton.

WILLIAM SURIMGIEOUR, OF PORTSMOUTH, VIRGINIA, ASSIGNOR TO MIRCS FUEL-OILEQUIPMENT COMPANY, OF NORFOLK, VIRGINIA.

HYDROGABBON-BURNER.

Patented July 20, 1909.

Application fi1ed December 26, 1907. Serial No. 408,091.

burner being of the type wherein the fuel is atomized or distributed andburned by means of steam or air under comparatively high pressures. g

A preferred form of burner constructed in accordance with the inventionis illustrated in the accompanying drawings wherein Figure 1 is a planview of one form of burner, the fuel and the air or steam chainbersbeing indicated in outline by dotted lines; Fig. 2 is a front elevationof the same;

Fig. 3 isa rear elevation of the same; Fig. 4.

is a. longittuliual vertical section of the same on the broken line i-4: of Fig. 3; Fig. 5 is a. vertical transverse section on hne 5-5 ofFig. at looking in the direction of the arrows; Fig. 6 is a frontelevation of a modi fiedform of burner adapted for the production of alarger flame; Fig. 7 is a vertical longitudinal section of the brokenline 7-7 of Fig. 6, and Fig. 8 is a sectional view illustrating amodified form of plug provided with a valve-controlled supplementalport.for air or steam.

Referring particularly to Figs. 1 to 5, the

burner is represented as comprlsing a cylin-- drical casing 1, usuallyof brass, the rearward portion being divided longitudinally by anL-shapedpartition 2 in such manner as to provide a steam or air chamber3, and

a smallerfuel chamber 4. At the front of the burner a prolongation ofthe fuel chamber 4 extends transversely across the burner beneath aproject-in lip 5, through which extends the central uel port- 6.

4 represents the fuel inlet for connection by means of valved pipes in-o usual way to, and tapers inwardliy to a source of supply fuel undersuitable pressure.

8 is an inlet aperture for steam or air, communicating with the chamber3 at its rear end: the steam or air chamber 3 extends transverselyacross the casing 1 above the partition 2, and thesteam or air is de:

liver-ed. through a contracted port 9 located" above and to the rear ofthe lip 5 and in close proximity to the fuel-port 6 in saidlip. Thearrangement ofthe fuel and air or steam ports is such that thefuelfiowing upwardly through the port 6 is sprayed or atomized andburned by the jetof air or steam from the port 9, the said 'jctbeingdirected across and impinging upon the fuel at its point of discharge:this relative arrangement of thefuel and air or steam ports is such asis commonly employed in the art.

Centrally disposed above the lip 5 in the front wall of the casing 1 isan aperture 10. This aperture is circular in form with the exception ofthe lower groove or extension 9 forming the air or steam port abovereferred to receive the plug The forward on of the plug 11 .is (Taperedto correspond to the aperture 10, and when fully retracted accuratelycloses the same with the exception of the port 9.

The plug 11 extends rearwardly through the and through a cir-- elongatedcap-nut 1% extends over the end of'the plug 11, this nut having anaccurately beveled bearing surface 15 engaging the outwardly taperingwalls 16 of the aperture 12 and forming a steam-tight joint therewith.The construction is such that when the nut 14 is turned to retract theplug 11 the apertures 10 and 12 are simultaneously closed; whereas bylooseningthe nut 14 the plug 11 may be thrust forward or completelyremoved. The port 9 may be cleared of any obstructing matter merely byadvancing the plug 11 and utilizing the pressure of the air or steam forclearing the orifice; or in case of necessity the removal of the plugaffords free access to the interior of the steam or air chamber.

In case a wider aperture for the discharge of fuel and air or steam isdesired, thereby providinga larger flame, I prefer to modify theconstruction in the manner shown in Figs. 6 and '7. The general.construction and arrangement of parts is as above described, but inorder to provide space required for the greater width of the air orsteam port 9, the plug 11 is semi-circular "in form at its forward end,its lower flat surface l7-being suitably grooved to provide an air orsteam port of the form and dimensions desired. Obviously the groove maybe formed in the wall of the casing beneath the plug incasing 1.

} quirec.

It is obvious that in stead of in the plug.

air or steam port may this constructionthe be extended laterallystruction is therefore more particularly adapted to burners ofrelatively great heating capacity.

In Fig- 7 I have illustrated screw-threads 18 formed in the exterior ofthe cylindrical This feature is equally applicable to all forms ofcylindrical burner casings,

and permits any burner to be screwed into place in a furnace wall,shield or the like, thereby protecting both the burner and operator fromthe heat of the flame. In burners of large capacity it is advantageousto provide the cap-nut 14- with a rearward extension 14 of sutficientlength to permit its ready mani/pulation while the burner is inoperation.

In Fig. 8 I have shown a further modification consisting in theprovision in the plug 11 of a supplemental air or steam port 19extending to the forward end of the plug above the air or steam port 9,the purposeof this supplemental port being to supply directly to theflame air or steam in excess of that which can be economically suppliedthrough the regular port 19, or which is resupplemental port 19communicates with the a r or steam chamber 3 through radial ports 20 intne plug 11, and is controlled by a valve 21 extending through the rearend.

of the plug. In this construction'the capnut 14 may be replaced by ashort nut 14",

permitting the operation of the valve 21, from the rear of the burner.

While I have specifically described the adaptation of the supplemental,valve-control ed air or steam port to the form of aperture shown inFigs. 1 to 5, it will be understood that the same is equally applicableto the modification illustrated in Figs. 6 and 7.

The burners of the form described are found in practice to beeconomical, efficient and easy 'of operation and control. constructionprovides a relatively large as desired, and the conto atomize or spraythe fuel. The

The

asses fuel chamber, the effect when operating the burner with steambeing to very effectively pre-heat the fuel and thus to increase theefii ciency of combustion; the construction fur taining combustion withfuels other than the hydrocarbon oils, the burner having provenefiective for the combustion of molasses or the like. The constructionof the plugs 11 the air or. steam ports that the burner is capable ofuninterrupted service under the most adverse conditions. ,The provisionof amounts of fuel than couldotherwise be economically used, and greatlyincreases the heating capacity of the burner.

I claim:

mg having a projectin lip and afcasing wall extending upward ytherefrom, f fuel and air or steam chambers in said casing, a port insaid lip communicating with said at the rear of said fuel port, and aplug partially closing said aperture, said plug located above said lip'and extending rearwardly tli'rough theburner casingm ing having aprojetting lip and a casing wall extending upwardly therefrom, fue. andair or steam chambers in said casing, a.,.port in said lip communicatingwith said fuel chamrear of said fuel port, a plug artially closigg saidaperture, said plug Iocated above said lipand extending rearwardlythrough the burner casing, and an adjustable retailiing device for saidplug. v c

3. In a hydrocarbon burner, a burner casing having a projecting lip anda casing wall extending upward y therefrom, fuel and air iusteamchambers in said casing, a port in her, a tapered aperture in the casingwall at partially closing said aperture, said plug locatcd above saidlip and extending rear- \vardl y through the burner casing.

ing having chambers for fuel and for air or steam, a fuel port, anaperture in said casing at the rear of said fuel port, a plug partiallyclosing said aperture, a supplemental air or steam port in said plug,and a valve for controlling said supplemental port.

5. In a hydrocarbon burner, a burner cas ing having chambers for fueland for air ,or

at the rear of said fuel port, a plug partially closing said aperture, asupplemental air or steam port extending from said air or steam steamchamber which partially incloses the thermore renders the burner capableof susor ll affords so ready a means for clearing the valve-controlledsupplemental port for air or steampermits the supply of larger 1. In ahydrocarbon burner, a burner casfuel chamber, an aperture in the casingwal 2. In a hydrocarbon burner, a burner ca..-

her, an aperture in the casing wall at the said lip communicating withsaid fuel cham- 11.0

he rear of said fuel port, and a tapered plug 4. In a hydrocarbonburner, a burner cassteam, a fuel port, an aperture in said casing('lmmber to the forward end of said plum. and 21 Valve for eontrollingsaid supple menial port.

G. In a hydrocarbon burner. a burner casing hz'wjng a projecting lip,fuel and air or steam chambers in said casing, 21 port in said lipcommunicating with said fuel chamber, a tapered aperture in said casingat the rear of said fuel port, a tapered plug partially closing saidaperture. and an adjustable retai n- 10 &

ing device for said plug.

In testnnony whereof, I flfi'lX my slgnature in presence of twowitnesses.

' WILLIAM SCRIMGEOUB.

\Vitnesses C. P. TOWNSEND, N. P. LEONARD.

